外墙传热系数的降低主要是靠增加保暖层厚度和改良保暖材料来实现。

Exterior wall heat transfer coefficient of the lower main is by adding heat preservation heat preservation material layer thickness and improved to realize.

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介绍了弹性复合材料的保暖性能，比较去除聚氨酯弹性膜前后非织造保暖层的保暖性及透气性。

The paper introduces the warmth retention property of elastic composite. It compares the warmth retention property and air permeability of nonwovens whether it has polyurethane elastic film or not.

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如果外面天实在是很冷，那么你还可以在中间加一层例如摇粒绒的衣服，增加隔热保暖。

If it's really cold out, you'll need a middle layer, such as polar fleece, for added insulation.

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